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The study and understanding of the details of proton-proton collisions is important since they are the benchmark for the comparison with heavy ion results. In the present work we have studied the $\Delta\eta\Delta\phi$ correlations as a…

High Energy Physics - Phenomenology · Physics 2015-01-29 Edgar Perez , Guy Paic , Antonio Ortiz , Eleazar Cuautle

Color reconnection (CR) mechanism in PYTHIA model has been reported to be essential to describe the flow-like collective effect observed in high multiplicity $p$+$p$ and $p$+Pb collisions. In this work, we test this mechanism towards…

High Energy Physics - Phenomenology · Physics 2019-12-12 Sourav Kundu , Bedangadas Mohanty , Dukhishyam Mallick

Based on PYTHIA6.428, event-by-event fluctuations of the mean transverse momentum in proton- proton collisions at sqrt_s = 7 TeV are studied using several measures of the fluctuations. The study compares results of the fluctuations for…

High Energy Physics - Phenomenology · Physics 2016-12-13 Qingjun Liu , Wei-Qin Zhao

We present studies of strange particle yields and correlations in $pp$ collisions in the PYTHIA8 event generator by studying forward-backward correlations. Several key processes that give rise to these correlative effects are identified and…

High Energy Physics - Phenomenology · Physics 2016-02-17 Igor Altsybeev , Grigory Feofilov , Ewen Lawson Gillies

Increasingly, with the data collected at the LHC we are confronted with the possible existence of flow in pp collisions. In this work we show that PYTHIA 8 produces flow-like effects in events with multiple hard subcollisions due to color…

High Energy Physics - Phenomenology · Physics 2013-08-08 Antonio Ortiz , Peter Christiansen , Eleazar Cuautle , Ivonne Maldonado , Guy Paic

We present studies that show how multi-parton interaction and color reconnection affect the hadro-chemistry in proton-proton (pp) collisions with special focus on the production of resonances using the PYTHIA8 event generator. We find that…

High Energy Physics - Phenomenology · Physics 2018-02-21 R. Acconcia , D. D. Chinellato , R. Derradi de Souza , C. Markert , J. Takahashi , G. Torrieri

The PYTHIA Monte Carlo (PMC) has been applied broadly to simulations of high-energy $p$-$p$ and $p$-$\bar p$ collisions. The PMC is based on several assumptions, such as that most hadrons result from jet production (multiple parton…

High Energy Physics - Phenomenology · Physics 2019-05-22 Thomas A. Trainor

In heavy-ion ({\it A-A}) collisions, the correlations among the particles produced across wide range in rapidity, probe the early stages of the reaction. The analyses of forward-backward multiplicity correlations in these collisions are…

Nuclear Experiment · Physics 2015-06-17 Sudipan De , T. Tarnowsky , T. K. Nayak , R. P. Scharenberg , B. K. Srivastava

Correlations and fluctuations between produced particles in an ultra-relativistic nuclear collision remain one of the successor to understand the basics of the particle production mechanism. More differential tools like Forward-Backward…

High Energy Physics - Phenomenology · Physics 2023-06-28 Joyati Mondal , Hirak Koley , Somnath Kar , Premomoy Ghosh , Argha Deb , Mitali Mondal

The forward-backward long-range multiplicity correlations in proton-proton collisions are investigated in the model with two independent sources of particles: one left- and one right-moving wounded nucleon. A good agreement with the UA5…

High Energy Physics - Phenomenology · Physics 2012-10-03 Adam Bzdak

We analyze the multiplicity correlations between distant forward and backward rapidity regions in relativistic heavy-ion collisions in a superposition framework, where the particle production occurs through independent emission from…

Nuclear Theory · Physics 2015-06-15 Adam Olszewski , Wojciech Broniowski

The transverse momentum ($p_{\rm T}$) spectra of inclusive charged particles and its dependence on charged-particle multiplicity are studied in pp collisions at $\sqrt{s}$ = 7 and 13 TeV using the Monte Carlo event generator PYTHIA Monash.…

High Energy Physics - Phenomenology · Physics 2025-02-04 Pranjal Sarma , Banajit Barman , Buddhadeb Bhattacharjee

Using inelastic proton-proton interactions at sqrt(s) = 900 GeV and 7 TeV, recorded by the ATLAS detector at the LHC, measurements have been made of the correlations between forward and backward charged-particle multiplicities and, for the…

High Energy Physics - Experiment · Physics 2012-08-27 ATLAS Collaboration

We present the results for the evolution of transverse momentum spectra for the jetty and underlying parts of events as a function of multiplicity in pp collisions at 13 TeV measured at midrapidity ($\left|\eta\right|<0.8$) using PYTHIA8…

High Energy Physics - Phenomenology · Physics 2020-02-26 Aditya Nath Mishra , Guy Paić

Multiple-parton interactions play a vital role in hadron-hadron collisions. This paper presents a study of the multiple-parton interactions with simulated Z + jets events in proton-proton collisions at a centre-of-mass energy of 13 TeV. The…

High Energy Physics - Phenomenology · Physics 2019-05-02 M. Bansal , S. Bansal , R. Kumar , J. B. Singh

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity…

High Energy Physics - Phenomenology · Physics 2021-08-30 Liang Zheng , Guang-Hui Zhang , Yun-Fan Liu , Zi-Wei Lin , Qi-Ye Shou , Zhong-Bao Yin

The pp collisions have been studied for a long time, however, there are still some effects which are not completely understood, such as the long range angular correlations and the flow patterns in high multiplicity events, which were…

High Energy Physics - Phenomenology · Physics 2015-06-24 Eleazar Cuautle , Antonio Ortiz , Guy Paic

Event classifiers based either on the charged-particle multiplicity or the event shape have been extensively used in proton-proton (pp) collisions by the ALICE collaboration at the LHC. The use of these tools became very instrumental since…

High Energy Physics - Phenomenology · Physics 2023-04-26 Antonio Ortiz , Arvind Khuntia , Omar Vázquez-Rueda , Sushanta Tripathy , Gyula Bencedi , Suraj Prasad , Feng Fan

General properties of hadron production are investigated in proton-proton collisions at LHC energies. We are interested in the characteristics of hadron production outside the identified jet cones. We improve earlier definitions and…

High Energy Physics - Phenomenology · Physics 2017-08-23 A. G. Agócs , G. G. Barnaföldi , P. Lévai

We study underlying-event observables in inelastic proton-proton (pp) collisions at a centre-of-mass energy of $\sqrt{s} = 13$ TeV with identified light and heavy-flavor triggers using the PYTHIA 8 event generator. The study is performed as…

High Energy Physics - Phenomenology · Physics 2021-11-03 Róbert Vértesi , Gyula Bencédi , Anett Misák , Antonio Ortiz
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